WO2019240383A1 - Conditionneur d'air et procédé de communication de tuyau associé - Google Patents

Conditionneur d'air et procédé de communication de tuyau associé Download PDF

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Publication number
WO2019240383A1
WO2019240383A1 PCT/KR2019/005724 KR2019005724W WO2019240383A1 WO 2019240383 A1 WO2019240383 A1 WO 2019240383A1 KR 2019005724 W KR2019005724 W KR 2019005724W WO 2019240383 A1 WO2019240383 A1 WO 2019240383A1
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WO
WIPO (PCT)
Prior art keywords
communication
mode
pipe
outdoor unit
air conditioner
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PCT/KR2019/005724
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English (en)
Korean (ko)
Inventor
허태복
김도연
윤공식
정략청
Original Assignee
삼성전자주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 삼성전자주식회사 filed Critical 삼성전자주식회사
Priority to US17/251,148 priority Critical patent/US11732918B2/en
Priority to CN201980040184.5A priority patent/CN112313882B/zh
Priority to EP19819879.8A priority patent/EP3817237A4/fr
Publication of WO2019240383A1 publication Critical patent/WO2019240383A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/56—Remote control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/26—Refrigerant piping
    • F24F1/32—Refrigerant piping for connecting the separate outdoor units to indoor units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/54—Systems for transmission via power distribution lines

Definitions

  • the present invention relates to an air conditioner for performing communication using a refrigerant pipe and a pipe communication method thereof.
  • An air conditioner is a device for controlling the temperature, humidity, and airflow of a room by using a heat transfer generated during evaporation and condensation of the refrigerant while the refrigerant circulates through a refrigerant cycle consisting of a compressor, a condenser, an expansion valve, and an evaporator.
  • Such an air conditioner may be divided into a detachable type and an integrated type, and the split type air conditioner includes an indoor unit installed indoors and an outdoor unit connected to the indoor unit and a refrigerant pipe installed outdoors.
  • One aspect of the present invention disclosed in order to solve the above-described problem proposes an air conditioner and a pipe communication method capable of smoothly performing communication between the outdoor unit and the indoor unit using the pipe communication.
  • an air conditioner includes an outdoor unit; A plurality of indoor units connected to the outdoor unit through a refrigerant pipe; And a piping communication device configured to convert information of the outdoor unit and the plurality of indoor units into communication signals and transmit the information to each other through the refrigerant pipe, wherein the pipe communication device transmits and receives communication signals through the first refrigerant pipe and the second refrigerant pipe.
  • Communication is performed between the outdoor unit and the plurality of indoor units using the first mode and a second mode for transmitting and receiving a communication signal through at least one refrigerant pipe of the first refrigerant pipe and the second refrigerant pipe.
  • the pipe communication device the master pipe communication device connected to the outdoor unit; And a plurality of slave piping communication devices respectively connected to the plurality of indoor units, wherein the master piping communication device includes: a controller configured to set a communication mode in a first mode or a second mode according to a communication state between the outdoor unit and the plurality of indoor units; It includes more.
  • the control unit transmits the preamble signal to the plurality of slave piping communication devices in the first mode or the second mode.
  • the plurality of slave pipe communication devices measure the level of the preamble signal received in the first mode or the second mode and transmit the measured level to the master pipe communication device.
  • the control unit measures the reception level of the first mode by setting the communication mode to the first mode at the start of initial communication of the air conditioner, and measures the reception level of the second mode by changing the communication mode to the second mode.
  • the control unit compares the measured reception level of the first mode with the measured reception level of the second mode, and sets a communication mode with a high reception level.
  • the plurality of slave pipe communication apparatuses are synchronized with the communication mode set in the master pipe communication apparatus to perform communication between the outdoor unit and the plurality of indoor units.
  • the control unit counts the number of times of changing the communication mode, and generates a communication error when the counted mode change count is equal to or more than the reference number of times.
  • the piping communication device is provided integrally inside each of the outdoor unit and the indoor unit.
  • Determining the communication state includes setting the communication mode to the first mode at the start of initial communication of the air conditioner to measure the reception level of the first mode; Change the communication mode to the second mode to measure a reception level of the second mode; And comparing the measured reception level of the first mode with the measured reception level of the second mode to determine a communication state.
  • the setting of the communication mode is to set a communication mode with a high reception level as a result of the comparison between the reception level of the first mode and the reception level of the second mode.
  • the pipe communication method of the air conditioner counting the number of times the preamble signal is transmitted in the first mode or the second mode; And determining that the reception level measurement of the first mode or the second mode is completed when the counted signal transmission number is equal to or greater than the set reference number.
  • the pipe communication method of the air conditioner determines whether a communication instability has occurred while performing communication in any one of the first communication mode and the second communication mode; If a communication instability condition occurs, change to another communication mode of the first communication mode and the second communication mode; Checking a communication state in the changed communication mode to determine whether the communication is successful; If the communication is successful, transmitting the communication signal in the changed communication mode to perform communication.
  • a pipe communication method of an air conditioner includes: counting the number of times of changing the communication mode; And generating a communication error when the counted mode change count is greater than or equal to the reference count.
  • the pipe communication device performs communication in a power line communication method.
  • FIG 1 is an overall connection diagram of an air conditioner according to an embodiment of the present invention.
  • FIG. 2 is a system configuration diagram of an air conditioner according to an embodiment of the present invention.
  • FIG. 3 is a control block diagram of an air conditioner according to an embodiment of the present invention.
  • FIG. 5 is an operation flowchart illustrating a communication mode change algorithm for pipe communication in the air conditioner according to an embodiment of the present invention.
  • FIG. 6 is a control block diagram of an air conditioner according to another embodiment of the present invention.
  • first may be referred to as the second component
  • second component may also be referred to as the first component.
  • the term “and / or” includes any combination of a plurality of related items or any item of a plurality of related items.
  • FIG 1 is an overall connection diagram of an air conditioner according to an embodiment of the present invention.
  • the air conditioner 1 includes at least one outdoor unit 10 and a plurality of indoor units 20 connected to the outdoor unit 10 through a refrigerant pipe 30; 20-1, 20-2, and 20-3. ,... 20-N).
  • the outdoor unit 10 may be installed in an outdoor space to perform heat exchange between outdoor air and a refrigerant.
  • the number of the outdoor units 10 is not limited, and according to the total air-conditioning capacity required for the entire indoor units 20; 20-1, 20-2, 20-3, ... 20-N, the desired air-conditioning ability can be achieved. You can adjust the number to make it.
  • the physical structure of the outdoor unit 10 is not limited, and may vary depending on the installation location or the number of connected indoor units 20; 20-1, 20-2, 20-3, ... 20-N, designer's intention or taste, and the like. have.
  • a plurality of indoor units 20 (20-1, 20-2, 20-3, ... 20-N) are installed in at least one indoor space to control the air to discharge the cold or warm air in the indoor space to control the room temperature It is prepared to be.
  • one indoor unit 20 (20-1, 20-2, 20-3, ... or 20-N) may be installed in one indoor space, or a plurality of indoor units 20 in one indoor space.
  • 20-1, 20-2, 20-3, ... 20-N) may be provided.
  • the indoor units 20 (20; 20-1, 20-2, 20-3, ... 20-N) are wall mounted indoor units mounted on a wall, stand indoor units mounted at a position of an indoor space, and windows. It may have a predetermined shape that can be considered by a designer, such as a window type indoor unit installed or a ceiling storage type indoor unit installed on the ceiling.
  • the plurality of indoor units 20 (20-1, 20-1, 20-2, 20-3, ... 20-N) connected to the outdoor unit 10 may all have the same form, may have different forms from each other, and some of the same form And others may have different forms.
  • the indoor units 20; 20-1, 20-2, 20-3, ... 20-N may all be ceiling-mounted indoor units, or the indoor units 20; 20-1, 20-2, 20-N. 3,... 20-N) may be a ceiling-mounted indoor unit, another is a stand-in indoor unit, and another may be a wall-mounted indoor unit.
  • the refrigerant pipe 30 connects the outdoor unit 10 and the plurality of indoor units 20 (20-1, 20-2, 20-3, ... 20-N), and connects the high pressure pipe 31 and the low pressure pipe 32 to each other. It may include.
  • These refrigerant pipes (30; 31, 32) is a high-pressure pipe (31) to connect a plurality of indoor units (20; 20-1, 20-2, 20-3, ... 20-N) to one outdoor unit (10) It may include one or more branch pipes for branching the over-pressure pipe 32.
  • the configured multi-type air conditioner 1 includes a plurality of indoor units 20; 20-1, 20-2, 20-3, ... 20-N and outdoor units 10 through refrigerant pipes 30;
  • Each of the indoor units 20 (20-1, 20-2, 20-3, ... 20-N) provides cooling air to the corresponding indoor spaces (cooling operation) or the warmth using a refrigerant flowing between Can be provided (heating operation).
  • the cooling operation and the heating operation may be selectively performed according to a predefined setting or a user's operation.
  • the refrigerant may be introduced into the plurality of indoor units 20 (20-1, 20-2, 20-3, ... 20-N), or the plurality of indoor units 20; 20-1, 20-2, 20-3, ... may be selectively introduced only to some indoor units of 20-N).
  • the air conditioner 1 may regulate the air in all the indoor spaces in which the plurality of indoor units 20 (20-1, 20-2, 20-3, ... 20-N) are installed, or in some indoor spaces. Only air can be adjusted.
  • the air conditioner 1 converts the information of the outdoor unit 10 and the plurality of indoor units 20 (20-1, 20-2, 20-3, ... 20-N) into a communication signal to cool the refrigerant. It may further include a pipe communication device (40; 40M, 40S) for transmitting to each other through the pipes (30; 31, 32).
  • the pipe communication device 40; 40M, 40S includes a master pipe communication device 40M connected to the outdoor unit 10, a plurality of indoor units 20; 20-1, 20-2, 20-3, ... 20-N; Each of the plurality of slave pipe communication devices 40S 40S-1, 40S-2, 40S-3, ... 40S-N connected to each other may be included.
  • FIG. 2 is a system configuration diagram of an air conditioner according to an embodiment of the present invention.
  • the outdoor unit 10 may include an outdoor unit controller 11 for overall operation control of the air conditioner 1, and includes a plurality of indoor units 20; 20-1, 20-2, 20-3, ... 20-N controls the indoor unit controller 21 for controlling the operation of the indoor units 20 (20-1, 20-2, 20-3,... 20-N) according to the control command transmitted from the outdoor unit 10; Each may include.
  • the outdoor unit controller 11 is a microprocessor that controls overall operations of the outdoor unit 10.
  • the outdoor unit controller 11 controls the indoor units 20 (20-1, 20-2, 20-3,..., 20 -N), respectively.
  • 21 and a pipe communication device 40 (40; 40M, 40S) are connected to communicate between the outdoor unit 10 and the plurality of indoor units (20; 20-1, 20-2, 20-3, ... 20-N) Can be configured to
  • the outdoor unit controller 11 may vary the driving capability of the outdoor unit 10 according to the total air-conditioning capacity required by the entire indoor units 20 (20-1, 20-2, 20-3, ... 20-N). .
  • the indoor unit controller 21 is a microprocessor which controls the overall operations of the plurality of indoor units 20 (20-1, 20-2, 20-3, ... 20-N), respectively, and the outdoor unit controller 11 and the pipe communication device ( 40; 40M, 40S). In addition, the indoor unit controller 21 receives the response data through the slave piping communication device 40S (40S-1, 40S-2, 40S-3, ... 40S-N), so that the outdoor unit 10 and the plurality of indoor units 20; 20-1, 20-2, 20-3, ... 20-N) can be configured to enable communication.
  • the master pipe communication device 40M is a pipe communication module connected to the outdoor unit 10 and is a master node that leads the network function of the pipe communication network.
  • the plurality of slave pipe communication apparatuses 40S; 40S-1, 40S-2, 40S-3, ... 40S-N include a plurality of indoor units 20; 20-1, 20-2, 20-3, ... 20-N.
  • a pipe communication module connected to each other, the slave node communicating with the master node and another slave pipe communication device (40S; 40S-1, 40S-2, 40S-3, ... or 40S-N).
  • Piping communication device (40; 40M, 40S) is a first mode (hereinafter referred to as a "differential mode") for connecting and transmitting communication signals to both ends of the refrigerant pipe (30; 31, 32) and the refrigerant pipe 30
  • the outdoor unit 10 and the plurality of indoor units using a second mode (hereinafter, referred to as a 'single mode') in which a communication line is connected to only one of the terminals 31 and 32 and the other one is connected to the ground to transmit and receive a communication signal.
  • Communication may be performed between (20; 20-1, 20-2, 20-3, ... 20-N).
  • Differential mode transmits and receives communication signals using two communication lines, which has the advantage of excellent communication signal quality and stable communication status.However, communication is disconnected when the communication signal becomes zero due to the overlap of high and low signals. (Disabled communication) may occur.
  • the single mode transmits and receives a communication signal using one communication line, there is a disadvantage in that the communication state is unstable due to the deterioration of the communication signal, but the situation in which the communication is disconnected (incapability of communication) does not occur.
  • Piping between the master node and each slave node in the multi-type air conditioner 1 connecting a plurality of indoor units 20 (20-1, 20-2, 20-3, ... 20-N) to one outdoor unit 10 A short may occur, or there may be a case where communication is not performed due to a large number of branch pipes for branching the refrigerant pipes 30; 31 and 32.
  • the air conditioner 1 changes the communication mode to the differential mode or the single mode according to the communication state, and sets the communication method most suitable for the site characteristics so that the outdoor unit 10 and the plurality of indoor units (20; 20-1, 20-2, 20-3, ... 20-N) to enable smooth communication.
  • FIG. 3 is a control block diagram of an air conditioner according to an embodiment of the present invention.
  • the pipe communication devices 40 are the master pipe communication device 40M which is a master node, and the slave pipe communication device 40S (40S; 40S-1, 40S-2, 40S-3,. Or 40S-N).
  • the master piping communication device 40M and the slave piping communication devices 40S are the control parts 41M and 41S, the storage parts 43M and 43S, respectively.
  • the communication unit 45M may further include 45S.
  • the controllers 41M and 41S are microprocessors that control the overall operation of the pipe communication devices 40 (40M and 40S), and the master pipe communication device 40M and the slave pipe communication devices 40S; 40S-1 and 40S-2. , 40S-3, ... 40S-N) by changing the communication mode between the outdoor unit 10 and the plurality of indoor units 20 (20-1, 20-2, 20-3, ... 20-N) It can be controlled to be possible.
  • the control unit 41M of the master piping communication device 40M sets the communication mode to the differential mode at the beginning of the initial communication in order to establish communication only in one of the differential mode and the single mode, and preambles the master node. After sending the signal to each slave node a plurality of times (n times; for example, 3 times) and measuring the reception level, the communication mode is changed to the single mode and the master node transmits the preamble signal to each slave node multiple times. (n times) transmit level can be measured.
  • control part 41M of the master piping communication apparatus 40M can set the communication mode with a high reception level by comparing the reception level of the differential mode and the single mode which were received by each slave node.
  • the controller 41S of the slave piping communication device 40S sets the level (size) of the preamble signal received in the differential mode and the single mode to each slave node. It is measured at, and the reception level measured at each slave node can be transmitted back to the master node. At this time, the control unit 41S of the slave piping communication device 40S (40S-1, 40S-2, 40S-3, ... 40S-N) may calculate the maximum, minimum and average values of the measured reception level.
  • the control unit 41M of the master piping communication device 40M sets the communication mode in the differential mode at the beginning of initial communication to transmit a preamble signal from the master node to each slave node a plurality of times (for example, three or more times). Can be.
  • the controller 41S of the slave pipe communication apparatus 40S (40S-1, 40S-2, 40S-3, ... 40S-N) measures the level of the preamble signal received in the differential mode at each slave node, The reception level measured at each slave node can be transmitted back to the master node. In this case, the maximum, minimum and average values of the measured reception level may be calculated.
  • the controller 41M of the master pipe communication device 40M changes the communication mode to the single mode so that the preamble signal from the master node to each slave node a plurality of times (e.g., For example, three times or more).
  • the controller 41S of the slave pipe communication apparatus 40S (40S-1, 40S-2, 40S-3, ... 40S-N) measures the level of the preamble signal received in the single mode at each slave node, The reception level measured at each slave node can be transmitted back to the master node. In this case, the maximum, minimum and average values of the measured reception level may be calculated.
  • the master node may compare the differential level and the single mode reception level transmitted from each slave node, and set the communication mode to a high reception level.
  • each slave node When the communication mode set by the master node is transmitted to each slave node, each slave node can be set to the same communication mode as the master node.
  • the controllers 41M and 41S may be implemented by using a device capable of performing various calculation and control operations. For example, it may be implemented using a central processing unit (CPU), a microcomputer (MiCOM), a microcontroller unit (MCU), or the like.
  • the controllers 41M and 41S may be implemented using one or more semiconductor chips or a device including the same.
  • the controllers 41M and 41S may be implemented using a general-purpose processing apparatus.
  • the controllers 41M and 41S may drive a program stored in the storage units 43M and 43S to perform necessary operations and control. You can also perform an operation.
  • the program stored in the storage units 43M and 43S may be stored by a designer or may be provided from an external server device that can be connected using a separate communication network. For example, the program may be available through an electronic software distribution network.
  • the controllers 41M and 41S may be implemented using a processing device programmed to perform a specific operation in advance by the designer.
  • the storage units 43M and 43S store various information necessary for the operation of the pipe communication devices 40; 40M and 40S, and the master pipe communication device 40M and the slave pipe communication devices 40S; 40S-1 and 40S-2. , 40S-3, ... 40S-N) can store the communication mode information of the differential mode and single mode that can be communicated.
  • the storage units 43M and 43S communicate with the operation information of the outdoor unit 10 and the plurality of indoor units 20; 20-1, 20-2, 20-3, ... 20-N through the communication units 45M and 45S. Failure information can also be saved.
  • the operation information of the outdoor unit 10 includes a defrost state, a condenser temperature, a compressor discharge temperature, an evaporator outlet temperature, an oil temperature, a compressor suction temperature, a low pressure pipe 32 pressure, a high pressure pipe 31 pressure, an outdoor temperature, and an outdoor electric valve opening degree. , Outdoor fan rotation speed, and the like.
  • Driving information of the plurality of indoor units 20 (20-1, 20-2, 20-3, ... 20-N) is supplied to the power sources of the indoor units 20 (20-1, 20-2, 20-3, ... 20-N).
  • Status set temperature, room temperature, indoor heat exchanger temperature, indoor piping outlet temperature, capacity code of indoor unit (20; 20-1, 20-2, 20-3,... 20-N), indoor motor opening degree, indoor fan Rotational speed and the like.
  • the storage units 43M and 43S store communication mode information of the master pipe communication device 40M and the slave pipe communication device 40S 40S-1, 40S-2, 40S-3, ... 40S-N which are updated in real time. And pipe piping communication module information selected as a master node. In this case, the operation information stored in the storage units 43M and 43S is communicated with the master piping communication device 40M or the slave piping communication device 40S; 40S-1, 40S-2, 40S-3, ... 40S-N. You can share with each other.
  • the storage units 43M and 43S are control programs for controlling operations of the master piping communication device 40M and the slave piping communication devices 40S (40S-1, 40S-2, 40S-3, ... 40S-N). And control data and various application programs and application data for performing various functions according to user input.
  • the storage units 43M and 43S are configured and resources included in the master pipe communication device 40M and the slave pipe communication device 40S (40S-1, 40S-2, 40S-3, ... 40S-N).
  • An operating system (OS) program for managing (software and hardware), a calendar application for managing a schedule, and the like can be stored.
  • OS operating system
  • the storage units 43M and 43S are reference data used during the operation control of the master piping communication device 40M and the slave piping communication devices 40S (40S-1, 40S-2, 40S-3, ... 40S-N). , Operation data generated while the master piping communication device 40M and the slave piping communication devices 40S; 40S-1, 40S-2, 40S-3, ... 40S-N perform predetermined operations, and the master piping communication device 40M and slave piping communication devices 40S; 40S-1, 40S-2, 40S-3, ... 40S-N, setting information such as setting data inputted to perform a predetermined operation, and master piping communication device 40M.
  • the storage units 43M and 43S may be implemented using a magnetic disk storage medium, a magnetic drum storage medium, or a semiconductor storage medium.
  • the semiconductor storage medium may include, for example, volatile memory such as static random access memory (S-RAM), dynamic random access memory (D-RAM), or the like.
  • volatile memory such as static random access memory (S-RAM), dynamic random access memory (D-RAM), or the like.
  • Non-volatile memory such as Erasable Programmable Read Only Memory (EPROM), Electrically Erasable Programmable Read Only Memory (EPROM), and flash memory.
  • EPROM Erasable Programmable Read Only Memory
  • EPROM Electrically Erasable Programmable Read Only Memory
  • flash memory such as Erasable Programmable Read Only Memory (EPROM), Electrically Erasable Programmable Read Only Memory (EPROM), and flash memory.
  • the storage units 43M and 43S are not limited thereto, and various storage devices that may be considered by a designer may be used.
  • controllers 41M and 41S and the storage units 43M and 43S have been described functionally, but the controllers 41M and 41S and the storage units 43M and 43S are not necessarily physically distinguished.
  • the controllers 41M and 41S and the storage units 43M and 43S may be implemented as one chip, or the controllers 41M and 41S and the storage units 43M and 43S may be implemented as separate chips. .
  • the communication units 45M and 45S are connected to the control units 41M and 41S, and the master piping communication device 40M and the slave piping communication devices 40S; 40S-1, 40S-2, 40S-3, ... 40S-N are connected to each other. It can be configured to communicate with each other.
  • the communication units 45M and 45S support communication for transmitting and receiving operation information between the master pipe communication device 40M and the slave pipe communication device 40S (40S-1, 40S-2, 40S-3, ... 40S-N).
  • a network connection is carried out by a pipe communication network so as to be able to communicate between the master pipe communication device 40M and the slave pipe communication device 40S (40S-1, 40S-2, 40S-3, ... 40S-N).
  • the communication units 45M and 45S may be connected to a local area network (LAN) via a wireless access point, or a single external device.
  • LAN local area network
  • Bluetooth a one-to-many communication with one or more external devices, and a broadcast signal receiving module for receiving a digital broadcast signal may be included.
  • the communication units 45M and 45S may be connected to other devices to transmit and receive information.
  • the communication units 45M and 45S may be connected to a mobile terminal located near the air conditioner 1 or a server located at a remote location, and may transmit information from the mobile terminal or the server.
  • the communication units 45M and 45S may be connected to a server to receive weather information.
  • FIG. 4 is a flowchart illustrating a communication mode setting algorithm for pipe communication in an air conditioner according to an embodiment of the present invention.
  • the communication mode should be set such that only one of the differential mode and the single mode communication is performed. Therefore, the communication mode is set to the differential mode at the start of the initial communication.
  • the control unit 41M of the master piping communication device 40M counts the number of times T1 of transmitting the preamble signal in the differential mode (102).
  • Each slave node, the slave pipe communication device 40S (40S-1, 40S-1, 40S-2, 40S-3, ..., or 40S-N) measures the level of the preamble signal received in the differential mode to determine the maximum, minimum, and average values. Can be calculated (104).
  • step 106 if it is determined in step 106 that the number T1 of transmitting the preamble signal in the differential mode is equal to or greater than the first reference number T1s, then the control unit 41M of the master piping communication device 40M measures the reception level in the differential mode. It is determined that this has been completed, and the flow proceeds to step 108.
  • each of the slave pipe communication devices 40S (40S; 40S-1, 40S-2, 40S-3, ... or 40S-N), which is a slave node, transmits a preamble signal in a single mode from the master pipe communication device 40M that is the master node. Send to
  • the control unit 41M of the master piping communication device 40M counts the number of times T2 of transmitting the preamble signal in the single mode (110).
  • Each slave node, the slave pipe communication device 40S (40S-1, 40S-1, 40S-2, 40S-3,... or 40S-N) measures the level of the preamble signal received in the single mode to determine the maximum, minimum and average values. Can be calculated (112).
  • step 114 if the number of times T2 of transmitting the preamble signal in the single mode is not greater than or equal to the second reference number T2s, the controller 41M of the master pipe communication device 40M determines that the reception level is measured in the single mode. It is determined that it is not completed, and feedback to step 108 proceeds to the subsequent operation.
  • step 114 if it is determined in step 114 that the number T2 of transmitting the preamble signal in the single mode is equal to or greater than the second reference number T2s, then the control unit 41M of the master pipe communication device 40M measures the reception level in the single mode. It is determined that this is completed, and the flow proceeds to step 116.
  • each slave node the slave pipe communication device 40S; 40S-1, 40S-2, 40S-3, ... 40S-N, measures the level of the preamble signal received in the differential mode and the single mode, and thus, the master node. It transmits to the in master piping communication device 40M.
  • the master piping communication device 40M which is a master node, has a reception level of the differential mode transmitted from each of the slave piping communication devices 40S that are slave nodes 40S-1, 40S-2, 40S-3, ... 40S-N.
  • the reception level of the single mode is compared with the reception level of the single mode to determine whether the reception level of the differential mode is greater than the reception level of the single mode (118).
  • the master piping communication device 40M which is a master node, has a plurality of outdoor units 10 and a plurality of.
  • the communication mode between the indoor units 20 of 20 (20-1, 20-2, 20-3, ... 20-N) is set to the differential mode (120).
  • 32) does not communicate due to a physical short between the refrigerant pipes 30; 31, 32, or a large number of branch pipes for branching the refrigerant pipes 30; 31, 32. Cases may occur.
  • the installer In order to set the communication mode in the actual field, the installer needs the equipment for measuring the signal, and the measurement level should be grasped.
  • the method may be simplified by automating the method according to an embodiment of the present invention. .
  • the outdoor unit 10 and the plurality of indoor units 20; 20-1, 20-2 by setting the communication mode most suitable for the site characteristics within a range in which the pipe communication signal does not exceed the EMI regulation of the air conditioner 1. 20-3, ... 20-N) can be performed smoothly.
  • the master pipe communication device 40M serving as the master node sets the set communication mode to the slave pipe communication device 40S, which is each slave node, 40S-1, 40S-2, 40S-3, ... 40S-N) to synchronize each slave node so that it is set to the same communication mode as the master node.
  • the communication state is unstable while performing communication between the outdoor unit 10 and the plurality of indoor units 20 (20-1, 20-2, 20-3, ... 20-N) in the set communication mode, thereby changing the communication mode. How to do this will be described with reference to FIG.
  • FIG. 5 is an operation flowchart illustrating a communication mode change algorithm for pipe communication in the air conditioner according to an embodiment of the present invention.
  • the master piping communication device 40M which is a master node, is a slave piping communication device 40S, each of which is a slave node, in a set communication mode (for example, a differential mode), 40S-1, 40S-2, 40S-3, ... 40S-N is synchronized to transmit and receive communication signals between the outdoor unit 10 and the indoor units 20 (20-1, 20-2, 20-3,... 20-N) to perform communication (200).
  • a set communication mode for example, a differential mode
  • the master pipe communication device 40M which is a master node, It is determined whether the communication instability state (202).
  • the level of the communication signal transmitted from the master node is measured at each slave node, and the level of the communication signal transmitted from the master node is compared with the level of the communication signal measured at each slave node. Is to check the success rate.
  • the pipe communication signal is transmitted in the set communication mode (for example, the differential mode) to transmit the outdoor unit 10 and the plurality of indoor units 20 (20-1, 20-2, 20). -3, ... 20-N) can be performed (203).
  • the set communication mode for example, the differential mode
  • the master pipe communication device 40M that is the master node changes the communication mode from, for example, the differential mode to the single mode (204), and the number of changes of the communication mode (T3). ) Is counted (206). The number of times T3 of the change of the communication mode is counted to check that there is no abnormality in the communication by checking the communication a certain number of times.
  • the master pipe communication device 40M which is the master node, checks the communication state again (208) and determines whether the communication is successful (210).
  • the communication signal transmitted from the master node is measured by comparing the level of the communication signal transmitted from the master node with the level of the communication signal transmitted from the master node by measuring the level of the communication signal transmitted from the master node. Is to check the success rate.
  • step 214 if the number of times T3 of the communication mode change is not greater than or equal to the set third reference number T3s, the controller 41M of the master piping communication device 40M returns to step 204 to change the communication mode again. The feedback proceeds to the subsequent operation.
  • step 214 if it is determined in step 214 that the number of times T3 of the communication mode change is equal to or greater than the set third reference number T3s, the controller 41M of the master piping communication device 40M changes the communication mode, even though the outdoor unit 10 changes the communication mode. Communication between the plurality of indoor units 20 (20-1, 20-2, 20-3, ... 20-N) is difficult, and a communication error is generated (216).
  • the outdoor unit 10 and the plurality of indoor units 20 may be changed in a range in which the pipe communication signal does not exceed the EMI regulation of the air conditioner 1 by changing the communication mode more than a predetermined number of times to find the most suitable communication mode. 20-1, 20-2, 20-3, ... 20-N) to facilitate the communication.
  • FIG. 6 is a control block diagram of an air conditioner according to another embodiment of the present invention.
  • piping communication devices 60 60M, 60S for communication between the outdoor unit 10 and the indoor unit 20 are provided in each of the outdoor unit 10 and the indoor unit 20. That is, the master piping communication device 60M is provided in the outdoor unit 10, and the slave piping communication device 60S is provided in the indoor unit 20.
  • the master piping communication device 60M may be integrally provided inside the outdoor unit 10.
  • the slave piping communication device 60S may be provided integrally inside the indoor unit 20.
  • the master pipe communication device 60M and the slave pipe communication device 60S may be devices that communicate in a power line communication (PLC) manner.
  • Power line communication is a communication technology that transmits voice, text data, video, etc. using a power line that supplies power. Power lines for power transmission are available without the need for a separate communication cable, which can be used for not only data communication but also Internet telephony (VoIP), home networking, home automation, and remote control.
  • the current commonly used in homes is the frequency band 60 Hz and the voltage is 110 volts or 220 volts.
  • Power line communication is performed by sending a communication signal in a frequency band other than 60 Hz, that is, 1 to 30 MHz frequency band.
  • the pipe communication devices 60 may include a master pipe communication device 60M that is a master node and a slave pipe communication device 60S that is a slave node.
  • the control unit 61M, 61S is a microprocessor that controls the overall operation of the pipe communication device 60 (60M, 60S), and changes the communication mode between the master pipe communication device 60M and the slave pipe communication device 60S.
  • the outdoor unit 10 and the plurality of indoor units 20 may be controlled to enable smooth communication.
  • the control unit 61M of the master piping communication device 60M sets the communication mode to the differential mode at the beginning of the initial communication in order to establish communication only in one of the differential mode and the single mode, and preambles the master node. After sending the signal to each slave node a plurality of times (n times; for example, 3 times) and measuring the reception level, the communication mode is changed to the single mode and the master node transmits the preamble signal to each slave node multiple times. (n times) transmit level can be measured.
  • control unit 61M of the master piping communication device 60M can set the communication mode with a high reception level by comparing the reception levels of the differential mode and the single mode received at each slave node.
  • the control unit 61M of the master piping communication device 60M sets the communication mode in the differential mode at the beginning of initial communication to transmit the preamble signal from the master node to each slave node a plurality of times (for example, three or more times). Can be.
  • control unit 61S of the slave piping communication device 60S may measure the level of the preamble signal received in the differential mode at each slave node and transmit the reception level measured at each slave node back to the master node. . In this case, the maximum, minimum and average values of the measured reception level may be calculated.
  • the control unit 61M of the master pipe communication device 60M changes the communication mode to the single mode so that the preamble signal can be transferred from the master node to each slave node a plurality of times (eg, For example, three times or more).
  • each slave node When the communication mode set by the master node is transmitted to each slave node, each slave node can be set to the same communication mode as the master node.
  • the controllers 61M and 61S may be implemented by using a device capable of performing various operations and control operations. For example, it may be implemented using a central processing unit (CPU), a microcomputer (MiCOM), a microcontroller unit (MCU), or the like.
  • the controllers 61M and 61S may be implemented using one or more semiconductor chips or a device including the same.
  • the controllers 61M and 61S may be implemented using a general-purpose processing apparatus.
  • the controllers 61M and 61S drive a program stored in the storage units 63M and 63S to perform necessary operations and control. You can also perform an operation.
  • the program stored in the storage units 63M and 63S may be stored by a designer or may be provided from an external server device that can be connected using a separate communication network. For example, the program may be available through an electronic software distribution network.
  • the controllers 61M and 61S may be implemented using a processing device programmed to perform a specific operation in advance by the designer.
  • the storage units 63M and 63S store various types of information necessary for the operation of the pipe communication devices 60 (60M and 60S), and the differential mode enables communication between the master pipe communication device 60M and the slave pipe communication device 60S6. And communication mode information of a single mode.
  • the information on the communication mode may determine whether the master pipe communication device 60M and the slave pipe communication device 60S are performing communication in the differential mode or the single mode.
  • the storage units 63M and 63S may store operation information and failure information of the outdoor unit 10 and the plurality of indoor units 20 through the communication units 65M and 65S.
  • the operation information of the outdoor unit 10 includes a defrost state, a condenser temperature, a compressor discharge temperature, an evaporator outlet temperature, an oil temperature, a compressor suction temperature, a low pressure pipe 32 pressure, a high pressure pipe 31 pressure, an outdoor temperature, and an outdoor electric valve opening degree. , Outdoor fan rotation speed, and the like.
  • the operation information of the plurality of indoor units 20 includes the power state of the indoor unit 20, a set temperature, an indoor temperature, an indoor heat exchanger temperature, an indoor piping outlet temperature, an ability code of the indoor unit 20, an indoor electric valve opening degree, and an indoor fan rotation. Speed and the like.
  • the failure information may include various failure codes related to compressor failure, compressor failure, outdoor fan failure, outdoor fan failure, indoor unit 20 temperature sensor failure, indoor fan failure, indoor fan failure, and the like.
  • the storage units 63M and 63S may store communication mode information of the master piping communication device 60M and the slave piping communication device 60S which are updated in real time, piping communication module information selected as the master node, and the like. In this case, the operation information stored in the storage units 63M and 63S may be shared with the master pipe communication device 60M or the slave pipe communication device 60S through communication.
  • the storage units 63M and 63S may include control programs and control data for controlling operations of the master piping communication device 60M and the slave piping communication device 60S, and various application programs that perform various functions according to user inputs. And application data.
  • the storage units 63M and 63S store operating system (OS) programs and schedules that manage configurations and resources (software and hardware) included in the master piping communication device 60M and the slave piping communication device 60S. Manage calendar applications, etc.
  • OS operating system
  • the storage units 63M and 63S may be implemented using a magnetic disk storage medium, a magnetic drum storage medium, or a semiconductor storage medium.
  • the semiconductor storage medium may include, for example, volatile memory such as static random access memory (S-RAM), dynamic random access memory (D-RAM), or the like.
  • volatile memory such as static random access memory (S-RAM), dynamic random access memory (D-RAM), or the like.
  • Non-volatile memory such as Erasable Programmable Read Only Memory (EPROM), Electrically Erasable Programmable Read Only Memory (EPROM), and flash memory.
  • EPROM Erasable Programmable Read Only Memory
  • EPROM Electrically Erasable Programmable Read Only Memory
  • flash memory such as Erasable Programmable Read Only Memory (EPROM), Electrically Erasable Programmable Read Only Memory (EPROM), and flash memory.
  • the storage units 63M and 63S are not limited thereto, and various storage devices that may be considered by a designer may be used.
  • controllers 61M and 61S and the storage units 63M and 63S have been described functionally, but the controllers 61M and 61S and the storage units 63M and 63S are not necessarily physically distinguished.
  • the controllers 61M and 61S and the storage units 63M and 63S may be implemented as one chip, or the controllers 61M and 61S and the storage units 63M and 63S may be implemented as separate chips. .
  • the communication units 65M and 65S are connected to the control units 61M and 61S and may be configured such that the master pipe communication device 60M and the slave pipe communication device 60S can communicate with each other.
  • the communication units 65M and 65S are communication modules that support exchange of operation information between the master pipe communication device 60M and the slave pipe communication device 60S.
  • the master pipe communication device 60M and the slave pipe communication device 60S are provided.
  • the communication units 65M and 65S may be connected to a local area network (LAN) through a wireless access device, or a single external device.
  • LAN local area network
  • Bluetooth, a one-to-many communication with one or more external devices, and a broadcast signal receiving module for receiving a digital broadcast signal may be included.
  • the communication units 65M and 65S may be connected to other devices using a GSM / 3GPP series communication scheme (GSM, HSDPA, LTE Advanced), a 3GPP2 series communication scheme (CDMA, etc.), or a wireless communication protocol such as WiMAX. .
  • GSM Global System for Mobile communications
  • HSDPA High Speed Downlink Packet Access
  • CDMA Code Division Multiple Access
  • WiMAX Wireless Fidelity

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

La présente invention porte sur un conditionneur d'air qui peut réaliser sans à-coups une communication entre une unité extérieure et des unités intérieures en utilisant une communication de tuyau, ainsi que sur un procédé de communication de tuyau associé. Lorsqu'une communication entre une unité extérieure et des unités intérieures est réalisée à l'aide d'une communication de tuyau, un mode de communication est automatiquement changé en un mode différentiel et un mode unique selon un état de communication et le procédé de communication le plus approprié aux caractéristiques d'un site est ainsi déterminé de telle sorte que la communication entre l'unité extérieure et les unités intérieures puisse être réalisée sans à-coups. Par conséquent, il est possible de mettre en œuvre une communication de tuyau sans à-coups en augmentant un taux de réussite de communication même lorsqu'un court-circuit physique entre des tuyaux de réfrigérant se produit ou que le nombre de tuyaux de dérivation pour diviser les tuyaux de réfrigérant augmente dans un conditionneur d'air multi-système qui raccorde une pluralité d'unités intérieures à une unité extérieure.
PCT/KR2019/005724 2018-06-15 2019-05-13 Conditionneur d'air et procédé de communication de tuyau associé WO2019240383A1 (fr)

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US17/251,148 US11732918B2 (en) 2018-06-15 2019-05-13 Air conditioner and piping communication method thereof
CN201980040184.5A CN112313882B (zh) 2018-06-15 2019-05-13 空调器及其管道通信方法
EP19819879.8A EP3817237A4 (fr) 2018-06-15 2019-05-13 Conditionneur d'air et procédé de communication de tuyau associé

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KR1020180069119A KR102457214B1 (ko) 2018-06-15 2018-06-15 공기 조화기 및 그 배관 통신 방법
KR10-2018-0069119 2018-06-15

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7417136B2 (ja) * 2022-02-24 2024-01-18 ダイキン工業株式会社 通信装置および空気調和システムの診断装置
KR102462869B1 (ko) * 2022-05-09 2022-11-03 박명화 전력선 통신을 이용한 팬코일 제어 시스템

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090151382A1 (en) * 2006-07-11 2009-06-18 Takashi Okano Transmission system for air conditioner
KR20140100651A (ko) * 2013-02-06 2014-08-18 엘지전자 주식회사 공기조화기 및 그 동작방법
KR20150057860A (ko) * 2013-11-20 2015-05-28 엘지전자 주식회사 도파관 특성을 이용한 냉매 배관 통신 기능을 갖는 공기 조화기 및 배관 통신 방법
KR20150060349A (ko) * 2013-11-26 2015-06-03 공석태 에어콘 냉매배관을 통한 전력공급및 통신제어방법
KR20150083270A (ko) * 2014-01-09 2015-07-17 (주)메티스커뮤니케이션 에어컨 배관용 도파관 통신장치

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH062880A (ja) * 1992-06-22 1994-01-11 Matsushita Seiko Co Ltd 分離型空気調和機
JPH06241543A (ja) * 1993-02-17 1994-08-30 Mitsubishi Electric Corp 空気調和システム
JP4129594B2 (ja) * 2003-04-15 2008-08-06 株式会社日立製作所 空調システム
KR100585991B1 (ko) * 2005-02-23 2006-06-02 주식회사 창조이십일 통신장비용 냉방장치 및 그 냉방 제어방법
KR100961792B1 (ko) * 2008-07-21 2010-06-08 주식회사 젤라인 에어컨의 냉매관을 이용한 통신방법 및 시스템
KR101229361B1 (ko) * 2010-03-10 2013-02-05 엘지전자 주식회사 배관 통신 장치, 이를 포함한 공기 조화기 및 이의 배관 통신 방법
US8666684B2 (en) * 2010-03-10 2014-03-04 Lg Electronics Inc. Air conditioning system and method for calculating amount of filling refrigerants of the same
EP2369255B1 (fr) * 2010-03-15 2018-05-02 LG Electronics Inc. Système de climatisation et son procédé de communication
KR20120085110A (ko) * 2011-01-21 2012-07-31 엘지전자 주식회사 공기 조화기와, 이의 통신 장치 및 통신 방법
KR102108525B1 (ko) 2013-01-29 2020-05-08 삼성전자주식회사 통신모듈, 이를 이용하는 멀티형 공기조화장치 및 그 제어 방법
KR102137020B1 (ko) * 2013-11-11 2020-07-23 엘지전자 주식회사 공기조화기의 배관 통신 장치
CN106440052B (zh) * 2016-11-03 2022-03-15 广东美的制冷设备有限公司 一种空调器及其控制方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090151382A1 (en) * 2006-07-11 2009-06-18 Takashi Okano Transmission system for air conditioner
KR20140100651A (ko) * 2013-02-06 2014-08-18 엘지전자 주식회사 공기조화기 및 그 동작방법
KR20150057860A (ko) * 2013-11-20 2015-05-28 엘지전자 주식회사 도파관 특성을 이용한 냉매 배관 통신 기능을 갖는 공기 조화기 및 배관 통신 방법
KR20150060349A (ko) * 2013-11-26 2015-06-03 공석태 에어콘 냉매배관을 통한 전력공급및 통신제어방법
KR20150083270A (ko) * 2014-01-09 2015-07-17 (주)메티스커뮤니케이션 에어컨 배관용 도파관 통신장치

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KR102457214B1 (ko) 2022-10-21
KR20190142064A (ko) 2019-12-26
EP3817237A1 (fr) 2021-05-05
US20210247089A1 (en) 2021-08-12
CN112313882B (zh) 2023-04-14
EP3817237A4 (fr) 2021-06-09
US11732918B2 (en) 2023-08-22

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